The potential of straw
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Large quantities of straw are available from cropping, and one hectare yield of rice straw can essentially support the energy needs of one small 350 kg animal for something like a year, though yields and qualities of straw vary.
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Whereas the nutritive value of wheat and rice straw is not good enough to provide maintenance requirements, the use of coarse straws e.g. from maize, millets and sorghum may allow animals to survive and maintain body weight.
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In absence of better feeds, the proper use of crop residues can therefore help to maintain more animals, and to retain more nutrients and income in the village.
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Fortunately, the yield of straw from fertilized and irrigated area may be higher than the yield of fodder from the natural vegetation.
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Unfortunately however, the nutritional value of straws is likely to be less than that of green leaves from forest or grazing.
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As a result, the quality of the feed resources tends to decline. Many ways to overcome these problems are discussed in this lesson.
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Last modified: Monday, 1 August 2011, 7:03 AM